Refrigerating apparatus



July 15, 1924. 1,501,859

C. L. MCCUEN REFRI GERATING APPARATUS l July 15, 1924. 1,501,859

i c. L. MccUEN REFRIGERATI NG APPARATUS Filed Aug. 5. 1920 2 Sheets-Sheet, 2

Patented July 15, 1924.

UNITED STATESY CHARLES L. MCCUEN, F CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, T0

PATENT 'oFFlca DELCO-LIGHT COMPANY, 0F DAYTON, OHIO, A CORPORATION OF DELAWARE.

REFRIGERATING AIIPABATUS.

Application mea August 5, 1920. serial No. 401,426.

To all w hom t may concern:

Be it known that I, CHARLES L. MCCUEN, a citizen of the United States, residing at Chicago, in the county of Cook and State of 6 Illinois, have invented certain new and use:

ful Improvements in Refrigerating Apparatus, of which the following is a specification.

My invention relates to a refrigerating ap paratus of that type in which a refrigerant,

such as sulphur dioxide, is used and the object thereof is to provide a novel, efficient and compact structure for the pump chamber and condenser chamber. vThe various features oi advantage and utility in my structure will be apparent from the description hereinafter given.

In the drawings, Fig. 1 is a central vertical sectional elevation through my structure; Fig. 2 a top plan view thereof; and Fi 3 an end elevation. f' I y new structure comprises essentially a casin 1 having formed therein a .pump cham r 2 and a condenser chamber 3, a pump 4 and an electric motor 5 for actuating such pump. The casing which is herean inte ral structure or single casting is provide at one end and in its` lower portion with an opening 6 through which is inserted the pum structure 4:. The structure is provided wit a marginal flange 7 which is secured to the casing 1 by means of the screws 8. This pump may be of any suitable t pe and construction but I prefer the type s own in the drawings, which is substantially the same as that illustrated and de scribed in Leonard Patent` No. 1,233,069, issued July 10, 1917. My present invention, however, is independent of the particular character or construction of the pump. The

armature shaft 9 of the electric motor 5 is operatively connected with the driving shaft 10 of the pump whereby the latter is driven as explained in said patent.

As shown articularly'in-Fig. 1, and by preference, t e motor 1s mountedupon a supporting plate 11, which is secured to thel Casin 1 by the same bolts 8 which se cure the anges 7 thereto. The motor is se- 5 cured to said su port in a suitable manner as by means of t e screws 12.

The delivery port 13 of the pump connects with a vertical deliver pipe 14.- which extends upwardly into t e upper portion of the pump chamber. At its upper end this ing 1, by' means of the screws 19, 19', and l roperly sealed at the points of connection.

he baile plate 16 is secured to or formsY a part of a horizontal plate 20, which is in turn secured to the plate 18 by rivets 21 or otherwise; This plate 20 has a central open# ing which constitutes said outlet 17 and the central portion of the plate is crimped and bent atits center in the form shown in Fig. 1, so as to afford strength and also a suitable seat for the hand operated valve 22, which is here shown in a position closing said outlet. After removingythe cap 23 and usin a socket wrench upon the valve stem 24 which is Screw threaded into the plug 23a the valve may be withdrawn from its seat at the out let 17. In the present .-instance,I provide this valve with a double seat, one' at the outlet 17 and the' other at 23b on the lower end of the plug. This avoids the necessity of a packing. gland, as the valve when opened rests against the upper seat. The particular function of this valve is to prevent exchange of oil over to the condenser 'chamber durin shipment.

This control in valve 22 is. mounted in a top .plate 25, w ich is secured to the casing 1 by the same screws 19,`hereinbefore described, and also by the screws 26, The

plate 18 extends not only over the pump chamber but over condenser chamber and the same is provided with a large opening coincident with such condenser chamber. This opening has an upwardl extending flange 27, adaptedto receive t e downwardly extendinr ange 28 of a condenser cylinder 29 which depends from said flange v27 to near the bottom of the condenser chamber. This cylinder fis of somewhat less diameter than the condenser chamber, with the result that an annular chamber 30 is formed between its outer walls and the inner wallsof the. condenser chamber. This annular chamber is for the purpose of ro- ,viding a water-cooling circulation w ich may be admitted at any suitablepont, as at 31, and released at anyI other suitable point,

as at 32. As the gas is compressed by and delivered from the pump 4, it passes upwardly through the pipe 14. into the upper portion of the pump chamber from whence it escapes through the outlet 17, passing horizontally above the plate i8 and thence down-- Wardly into the condenser cylinder 29, Wherein it is condensed. The refrigerant, which is now a liquid cooled in the bottom of the cylinder 29, passes upwardl through the vertical draw-oil' pipe 33, which extends up wardly, and is connected to the pipe fitting 34, which in turn is secured to the plate 25. The refrigerant then passes through a suitable needle valve 35 and thence through the pipe 3G to the remainder of the refrigerating system, such as expansion valve and refrigerating coils, which, being of the usual and well-known type, need not be illustrated or described. The function of the valve 35 is to retain the refrigerant in the condensing cylinder during shipment and to provide an easy means of connecting the refrigerant line to the expansion system at the time of installation and also an easy means of removal of machine.

The pump chamber wall adjacent the condenser chamber and separating such pump chamber from the coolin space 30 which wall is preferably provided with tins 37, causes a cooling of the oil surrounding the pump, inasmuch as the condensing water in said space acts through such wall and .fins to thus cool the oil.

I claim:

1. In a refrigerating apparatus of the class described, the combination of a casing having therein a pump chamber and a condenser charnber arranged parallel to each other, a pump in the pump chamber, a plate secured to the top of the casing and having an outlet. opening from the pump chamber and an inlet opening into the condenser chamber, a condenser cylinder secured to said plate at. said inlet opening, said cylinder being open at its top and closed at its bottom, means for conducting the liquid refrigerant from the cylinder, and a cover secured to the casing and above the plate to form a gas passage between them.

2. In a refrigerating apparatus ott the class described, the combination of a casing having therein a pump chamber and a condenser chamber arranged parallel to each other, a pump in they pump chamber, a plate secured to the top oit the casing and having an outlet opening from the pump chamber andan inlet opening into the condenser chamber, a condenser cylinder secured to said. plate at said inlet opening, said cylinder being open at its top and closed at its bottom, means for conducting the liquid rerigerant from the cylinder, said plate at its inlet opening and said cylinder at its top edge having interlocking flanges whereby increase the cylinder is suspended from the plate, and a cover secured to the casing and above the plate to 'form a gas passage between them.

3. In a refrigerating apparatus of the class described, the combination of a. closed casing having therein a pump chamber and a condenser chamber arranged parallel to each other, a (pump in the pump chamber, a plate secure within the casing and having an outlet. opening from the pump chamber and an inlet opening into the condenser chamber, a condenser cylinder secured to said plate at said inlet opening, said cylinder being open at its top and closed at its bottom. and a cover secured to the casing and above the plate to form a as passage between them, means for con noting the liquid refrigerant from the cylinder, said cylinder being of less diameter than the condenser chamber so as to form an annular space for water cooling circulation.

4. In a refrigeratin apparatus of the class described, the com ination of a casing having therein a. pump chamber and a condenser chamber arranged parallel to each other, a pump in the pump chamber, a plate secured to the top of the casing and having an outlet opening from the pump chamber and an inlet opening into the condenser chamber, a condenser cylinder secured to said plate at said inlet opening, said cylinder being open at its top and closed at its bot' tom and a cover secured to the casing and above the plate to form ages' passa i between them, means for conducting the dieqnid refrigerant from the cylinder consistin of a vertical pipe extending through the inlet opening and into the cylinder to near the bottom thereof.

5. In a rerigeratin apparatus oit the class described, the com ination of a casing having therein a pump chamber and a condenser chamber arranged parallel to each other, a pump in the pump chamber, a plate secured to the top of the casing4 and having an outlet o ,ning from the pump chamber and an in .et opening into the condenser chamber, a condenser cylinder secured to said plateat said inlet opening, said cylinder being open at its to and closed at its bottom, means for con noting the liquid refrigerant from the cylinder, consisting of a vertical pipe extending through the inlet opening and into the cylinder to near the bottom thereof, and a cover secured to the an outlet o ening from the pump chamber and an in et o ening into the condenser chamber, a con enser cylinder secured to said plate at said inletopening, said cylinder being open at its to and closed at its bottom, means for con uct-ing the liquid refri erant. from the c linder, a cover secure' to the casing an above the plate to form a gas passage between them, and gas valve'mounted in said cover and controlling said outlet from the pump chamber.

7. In a refrigerating apparatus of the class described, the combination of a casing having therein a pump chamber and a condenser chamber arranged parallel to each other, a pump in the pump chamber, a plate 4 secured to the top of the casing and having an outlet opening from the pump chamber, a condenser cylinder within the condenser chamber and connected with the casin adjacent the top thereof, said cylinder eing open at, its top and closed at its bottom, means for conducting the liquid refrigerant from the cylinder, andl a cover secured to the casing and above the plate to form a gas passa e-between them.

8. n a refrigerating apparatus of the class described, the combination of a casing having therein a pump chamber and a condenser chamber separated by' a wall, a pump in the bottom of the pump chamber, such latter chamber being adapted to contain a bod of oil in which the pump is submerged, sai wall having fins in said body of 011, a condenser cylinder arranged in the condenser chamber to form an annular cooling space between it and the condenser cylinder including said wall, whereby a coolin me-` dium in such space acts through the wa and fins to coolthe body of oil.

9. In a refrigerating apparatus of the class described, the combination of a casing having therein a pump chamber and a condenser chamber arranged along one side of the pump chamber separated therefrom bv a common wall, a ump in the pump cham er spaced from said common wall and submerged in a fluid, and means for circulating a cooling medium in the condenser chamber whereby. heat is abstracted throu h the common wall to cool the pump chamger.

10. In a rerigeratin apparatus ofl the class described, the com inatlon of a casing having therein a pump chamber and a condenser Ichamber arranged along one side of the pump chamber separated therefrom b a common wall, a pump in the pump cham r spaced from said common wall and submerged in a fluid, and means for circulating a cooling medium in the condenser chamber in contact with the common wall whereb heat is abstracted through the common wa l to cool the pu'mp chamber. 11. In a refrl eratin apparatus of the class described, t e com inationof a casing having therein a pump chamber and a condenser chamber arranged parallel to each other, a pump in the pump chamber, a plate secured to the top of the casing and having 'an outlet o ning from'the pump chamber and an in et opening into the condenserl chamber, a cover secured to the casing and above the plate to form a gas passage be- -tween the chambers, and a valve member carried by the cover and adapted to seat on the plate to close the said opening therein.

12. In a refrigeratin apparatus of the class described, the com ination of a casing having therein a pump chamber and a condenser chamber arranged parallel to each other, a pump in the pump chamber, a plate secured to the top of the casing and having an outlet opening from the pump chamber and an inlet opening into the condenser chamber, a cover secured to the casing and above lthe late to form a as passage between the c ambers, and a va ve member carried by the cover and adapted-to seat on the plate to close the said o nin therein, said valve being adjustable said va "paratus 13. n a refrigeratin apparatus of the class described, t e com ination of a casing having therein a pump chamber and a condenser chamber arranged parallel to each other, agpumpin the pump chamber, a plate secured'to the top of the casing and having an outlet o ing from the pump chamber and an in et opening into the condenser chamber, a cover secured to the casing and above the plate to form a gas' assage between the chambers, and a va ve member traversing the asse e and adapted to seat on the plate to c osel te said opening therein.

foHARLEs LL MCcUEN.

om t e exterior of 

